Valve.



J. H. ASHTON.

VALVE.

APPLICATION FILED JUNE 19. $96.

1 ,201 ,237 Patented Oct. 17, 1916.

fnvenior M.Z/%U-M A2220??? e UNITED STATES PATENT OFFICE.

JOHN H. ASHTON, OF PROVIDENGE RHODE ISLAND.

VALVE Application filed June 19, 1916. SeriaLNo. 104,395.

To all'whom it may concern:

Be it known that' 1, JOH H. ASHTON, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certainnew and useful Improvements in I Valves, of which the following is a specification.

My invention relates to pressure regulating valves, and is primarily intended for use in conjunction with fountains and other discharge devices wherein a substantially conls)tlant air, fluid, or liquid pressure is desira- The essential objects of my invention are to automatically maintain a constant pressure at the fountain or other point of discharge to regulate the degree or standard of pressure; and to attain these ends in a simple, accurately operating, light, compact and inexpensive structure.

To the above ends essentially my invention consists in such parts and in such combinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form a part of this specification, Figures 1 and 2, are longitudinal central sections of my device showing the parts in open and closed positions respectively, and Figs. 3 and 4, sections of the same on line 33 and 44 respectively of Fig. 1.

Like reference characters indicate like parts throughout the views. 7

The valve casing in this instance comprises a body 6 with extending screw threaded necks or nozzles 7 and 8 disposed in longitudinal-alinement with each other on opposite sides of the casing, and serving as an inlet and outlet respectively. A neck orboss 11 integral with the top of the casing has an internal thread 12; and a boss or extension 14 integral with the bottom of the body has a thread 15. A highpressure or inlet Specification of Letters Patent.

26 has a bore of the same diametrical dimension asthe bearing 21 and cooperates with the latter member to complete the cyl-' inder. These two members are, however, spaced from each other to form a circular channel 29 communicating with the chamber 18. r

Slidablv'm'ounted in the members 21-and 26 is a tube 31 extending from the cap head 26 to the lower end of the member 21, the latter member being spaced from the bottom of the casingas at 33 to constitute a part of the chamber 18. The tube, inan intermediate portion,has arcuate slots or ports 34 diametrically. opposite each other and normally registering with the channel 29. Immediately below these ports the tube has an internal annular shoulder 35 forming a pas sage 36, and a resultant chamber 37 in the upper portion of'the tube. Against the wall or shoulder 35 abuts the upper end of a helical spring 38 whose lower end embraces the reduced end-39 of a screw 40 whose thread 41 engages the thread 15 of the boss 14. In thepresentinstance the boss 14 is of extended length to admit a screw 43 in its end whose thread 44 also engages the thread 15,

and whose head 45 abuts against the end of the boss. The screw 43 protects the screw 40 and is amply spaced therefrom to permit a wide extent of'travel of the latter.

The operation ofmy device is as follows:

The air, fluid,or liquid enters the chamber .17 under pressure and passing through the channel 29 and ports 34 enters the compression chamber 37, whence it passes-through completely cutting off the ingress of the element through the ports 34 whose descent carries them out of alinement with the channel 29, whereupon the upward pressure of the spring 38 becomes effective to raise the tube sufficiently to permit the ingress there- Patented Oct. 17, 1916.

as i

the passage 36 and the lower end of the tube i through of-a greater or less amount of water determined by the adjustment of the spring.

Hence by thisrautomatic counterbalancing operation the passage-of the element is uni- The degree form in quantity and pressure.

of pressure at which the element flows is predetermined and regulated by turning the screw 40 which compresses the spring 38.

I claim A 1. In an automatic controlling valve, a

valve casing having an inlet chamber, an

outlet 1 chamber, a tubular valve slidably v mounted in the casing between the chamthe channel.

hers, a transverse partition in the valve 'provalve casing having an inlet chamber, an

outlet-chamber, a valve bearing in the casing betwe'enthe chambers provided with a channel, a tubular valve slida'bly' mounted in the bearing and opening into the outlet chamber, a transverse partition in the valve pro- .vided with an opening, said valve being provided with inlets normall re 'ste with the channel located on the s me diifi of the partition, and resilient means in the outlet chamber engaging the partition for maintaining the inlets in registration with 3. In an automatic controlling valve, a.

valve casing having an inlet chamber, an

outlet chamber, a valve bearin in the casing ing with the inlet chamber to admit an element under pressure, and resilient means in the outlet'chamber operatingupon the side of the partition opposite the inlets for counteracting the pressure of the element entering the valve through the inlets.

4:. In an automatic controlling valve, a valve casing having an inlet chamber, an outlet chamber, a tubular valve slidably mounted in the casing opening into the outlet chamber and provided with inlets communicating with the inlet chamber, a transverse partltion in the valve provided with.

an opening and located at one side of the inlets, an adjusting screw in the casing 1n alinement with the valve, and a spring on the adjusting screw extending into the valve longitudinally thereof and abutting agalnst the face of the partition opposite from the inlets; I I i I En, testimony whereof I have afixed "my siwature.

. JOHN H. ASH'JIQN. 

